Tag: Homo Sapiens
-
Book review: How the Mind Changed: A Human History of Our Evolving Brain
Arpan K. BanerjeeSolihull, United Kingdom The human brain has long been a source of wonder and a fascinating subject for study. Philosophers, scientists, biologists, psychologists, anthropologists, and medical scholars have spent lifetimes studying the brain and how this remarkable organ works. In this book, neuroscientist and author Joseph Jebelli describes the evolutionary development of the…
-
Entomophagy: History, global food shortage, and climate change
James L. FranklinChicago, Illinois, United States On a recent wildlife adventure to the Kalahari Desert in Botswana, our group of adventurers was treated to an afternoon walk with a group of local Khoisan villagers. They were eager to show us how they were able to live off the land. Highlights of that visit included hearing…
-
The mystique of psychiatry: a closer look
Lawrence ClimoLincoln, Massachusetts, United States As a retired psychiatrist, I have been thinking about the mystique that surrounds our profession. Psychiatrists seem to trigger three provocative associations that set them apart from other physicians. The first, sometimes interpreted as a wish, is that psychiatrists read minds and therefore know what is concealed or hidden inside…
-
A note on handedness
JMS Pearce Hull, England, United Kingdom Handedness (chirality) refers to the preferential use of one hand over the other. It is a matter of degree; it is seldom absolute. Population left and right preference existed in the Neanderthals (lived from 400,000 to about 40,000 years ago) onwards. Only homo sapiens amongst the great apes…
-
Mitochondrial DNA: a maternal gift
Marshall Lichtman Rochester, New York, United States Human haplogroup tree rooted at Mitochondrial Eve. By Wapondaponda. 2009. Via Wikimedia. CC BY-SA 3.0 DNA is arrayed on twenty-three pairs of chromosomes in human cell nuclei. It is coiled tightly around proteins called histones that together with DNA form a chromosome. The largest chromosome carries several…
-
All too human: The mountain gorillas of Uganda
James L. FranklinChicago, Illinois, United States The Ugandan mountain gorilla is a member of the Hominidae family, also known as the great Apes. The extant species include: the orangutan, the eastern and western gorilla, the chimpanzee, the bonobo, and ourselves—Homo sapiens. The mountain gorilla is one of two subspecies of the eastern gorilla. The one…